How to install cryptographic service

First, copy the cryptsvc.dll file in the windows\System32\ directory from other systems to the windows\System32\ directory of your own system disk;

Then, copy the following content to Notes In this book, save it as a sryptsvc.reg file. Note that the suffix is ??.reg. The file icon is the icon of the registry file. In the "Folder Options" → "View" setting interface, after canceling "Hide extensions for known file types" , you can modify the file suffix. Then, double-click this registry file and import the registry to restore the missing cryptographic service service item (you can also export the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CryptSvc key item from other windows system registries, and then import it into your own registry) ：

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CryptSvc]

"DependOnService"=hex(7):52,00 ,70,00,63,00,53,00,73,00,00,00,00,00

"Description"="Provides three management services: Catalog database service, which determines Windows files Signatures; the Protected Root service, which adds and removes certificates from trusted root certification authorities from this computer; and the Key service, which helps register this computer for certificates. If this service is terminated, these management services will be unable to do so. Normal operation. If this service is disabled, any services that depend on it will fail to start.

"DisplayName"="Cryptographic Services"

"ErrorControl"=dword:00000001

"ImagePath"=hex(2):25,00, 53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,\

74,00,25, 00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,\

< p> 00,76,00,63,00,68,00,6f,00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d, 00,\

6b,00,20,00,6e,00,65,00,74,00,73,00,76,00,63,00,73,00,00,00< /p>

"ObjectName"="LocalSystem"

"Start"=dword:00000002

"Type"=dword:00000020

[HKEY_LOCAL_MACHINE \SYSTEM\CurrentControlSet\Services\CryptSvc\Parameters]

"ServiceDll"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00 ,6d,00,52,00,6f,00,6f,\

00,74,00,25,00,5c,00,53,00,79,00,73,00,74 ,00,65,00,6d,00,33,00,32,00,5c,00,\